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11-85.

Multiple Choice: The graph of is shown at right. The function is twice differentiable. Examine the graph and decide which statement below is true. 

  1.  

  1.  

  1.  

  1.  

  1.  

Downward parabola, vertex at the point (2, comma 2), passing through the points (3, comma 1) & (1, comma 1).


is a maximum, so
The graph is concave down, so is ____.